21607313

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12497}}^1$

素因数の和:12536

約数の個数: 16

約数和(自身を含む): 27995520

約数和(自身を除く): 6388207

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 12497, 87479, 162461, 237443, 1137227, 1662101, 3086759, 21607313]

約数ペア:

[(1, 21607313), (7, 3086759), (13, 1662101), (19, 1137227), (91, 237443), (133, 162461), (247, 87479), (1729, 12497)]